I quite like the creeper rabbit hole thing. I've been working on my own version of this and I originally had 3 Overmind, but my worry was that if Swordsman starts turning up more when Eater is released, it will really ruin this deck's day. Here is my list as it stands:
Power of the Mind - Workshop
Chaos Theory: Wünderkind (Cyber Exodus)
2x Diesel (Core Set)
2x Legwork (Honor and Profit) ••••
2x Stimhack (Core Set) ••
3x Sure Gamble (Core Set)
2x Dinosaurus (Cyber Exodus)
2x e3 Feedback Implants (Trace Amount) ••••
3x Lockpick (Opening Moves)
2x MemStrips (Order and Chaos) ••••
2x Plascrete Carapace (What Lies Ahead)
3x R&D Interface (Future Proof)
2x Rabbit Hole (Core Set)
3x Personal Workshop (Cyber Exodus)
2x Creeper (Humanity's Shadow)
2x Sage (The Source)
3x Leprechaun (Upstalk)
2x Magnum Opus (Core Set)
3x Self-modifying Code (Creation and Control)
14 influence spent (max 15)
40 cards (min 40)
Cards up to Order and Chaos
Deck built on http://netrunnerdb.com.
As you can see, I've included Memstrips from Order & Chaos, because that's going to feel pretty good with sage. I've gone for Leprechaun as well for hosting Sage and Mopus. Sometimes I'll want Sage on the Dino, other times Creeper will be a better fit. Depends on the matchup.
I've never actually played with Personal Workshop, but my hope is that it'll get around the timing issue of seeing Mopus or Sage before Dino or Leprechaun.
Also, Lockpick can used to break code gates with Sage. I don't know how that will actually end up being, but it sounds fun.